The main quest numbers one, two, and three are universal tasks, not conflicting with the faction you join. The original main quest number four, which broadly involved exorcising demons and safeguarding the Dao to stimulate celestial fate, genuinely changed with faction changes.
If the celestial fate in the original main quest referred to the Celestial Gate, then the revised main quest number four is equivalent to further detailing the requirements, making activation alone insufficient, requiring Emperor Zhaoning to activate and control it.
Undoubtedly, this change increased the difficulty of completing the dungeon.
However, in the Abyssal Game, one thing is very fair, which is that with increased difficulty, the rewards also increase.
For example, the side quest 1 he just completed, as his initial task upon joining the Great Xuan Royal Family faction, allowed him to enter the Great Xuan Treasure vault to choose any Secret Technique.
